Home / 3,220.84-4,443.42-2,171.08

Finding the Fourth Proportional to 3,220.84, 4,443.42 and 2,171.08

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Solution

The fourth proportional to 3,220.84, 4,443.42 and 2,171.08 is: 2,995.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,220.84 : 4,443.42 = 2,171.08 : x
  2. Step 2: Convert to fraction form
    3,220.84/4,443.42 = 2,171.08/x
  3. Step 3: Cross multiply
    3,220.84x = 4,443.42 × 2,171.08
  4. Step 4: Simplify right side
    3,220.84x = 9,647,020.29
  5. Step 5: Solve for x
    x = 9,647,020.29/3,220.84
  6. Step 6: Final answer
    x = 2,995.19

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.